Rainbow Electronics T89C5115 - Manual (Page 8)

8
T89C5115
4128A–8051–04/02
associated nFET is switched off. This is traditional CMOS switch convention. Current
strengths are 1/10 that of pFET #3
Figure 2. Internal Pull-Up Configurations
READ PIN
INPUT DATA
P1.x
OUTPUT DATA
2 Osc. PERIODS
n
p1(1) p2 p3
VCC VCC VCC
P2.x
P3.x
P4.x